President Obama displays his Nobel Peace Prize during a ceremony in Oslo in December 2009. During his acceptance speech, the president discussed the concept of a "just war," saying: "There will be times when nations — acting individually or in concert — will find the use of force not only necessary but morally justified." Susan Walsh/AP hide caption

itoggle caption Susan Walsh/AP

A $5 per gallon price is posted at a gas station in Belmont, Calif., on Wednesday. Paul Sakuma/AP hide caption

itoggle caption Paul Sakuma/AP

The sun gleamed down on the closed Washington Monument as the federal budget impasse continued in Washington on Jan. 4, 1996. Brawling and bargaining by turns, President Clinton and Republican congressional leaders struggled to make progress toward a balanced budget, while blaming each other for a partial government shutdown that inconvenienced millions. Dennis Cook/AP hide caption

itoggle caption Dennis Cook/AP

President Obama faced a battery of questions about his budget Tuesday during a news conference at the Eisenhower Executive Office Building in Washington. One problem Obama and other politicians confront when it comes to the budget is that most voters want more government than they're willing to pay for. Chip Somodevilla/Getty Images hide caption

itoggle caption Chip Somodevilla/Getty Images